President Barack Obama’s fourth year in office clocks in as one of the most polarized years in recent history, a new poll says.

According to a Gallup survey posted Thursday, in Obama’s fourth year in office, he enjoyed an 86 percent average approval rating from Democrats, but only a 10 percent average approval rating from Republicans — a gap of 76 points. Going back to at least the 1950s, only President George W. Bush, in his fourth year in office, had a gap equally large: from January 2004-2005, Bush had a 91 percent average approval rating from GOP voters and a 15 percent average approval rating from Democrats, Gallup showed.

Gallup noted, however, that over the last decade, there has been an overall trend toward polarization, indicating that “Obama’s highly polarized ratings may be as much a reflection of the era in which he’s governing as on Obama himself.”

The survey also said that with the exception of President Dwight D. Eisenhower, the most polarized approval-disapproval ratings have come during the fourth years of presidencies, coinciding with elections.

Gallup’s presidential years start on Jan. 20 of each year, and end on Jan. 19 of the following year, the poll said.